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  196. </head>

  197. <body>

  198. <div id="content" class="content">

  199. <h1 class="title">Lab4 Solution Amirlan Sharipov (BS21-CS-01)</h1>

  200. <div id="table-of-contents" role="doc-toc">

  201. <h2>Table of Contents</h2>

  202. <div id="text-table-of-contents" role="doc-toc">

  203. <ul>

  204. <li><a href="#orgb19b1fd">1. Question 1</a></li>

  205. <li><a href="#org71726c2">2. Question 2</a></li>

  206. <li><a href="#orgf7b5bdd">3. Question 3</a></li>

  207. <li><a href="#org54ff846">4. Question 4</a></li>

  208. <li><a href="#org5397b06">5. Question 5</a></li>

  209. </ul>

  210. </div>

  211. </div>

  212. 

  213. <div id="outline-container-orgb19b1fd" class="outline-2">

  214. <h2 id="orgb19b1fd"><span class="section-number-2">1.</span> Question 1</h2>

  215. <div class="outline-text-2" id="text-1">

  216. <div class="org-src-container">

  217. <pre class="src src-bash"><span style="color: #c792ea;">grep</span> -E <span style="color: #c3e88d;">'(ERROR|WARNING)'</span> server-data.log

  218. </pre>

  219. </div>

  220. 

  221. <pre class="example">

  222. 2022/09/18 13:25:34 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  223. 2022/09/18 13:25:35 wazuh-remoted: WARNING: Remote syslog not parsed from: '10.110.18.0/24'

  224. 2022/09/18 13:25:35 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  225. </pre>

  226. </div>

  227. </div>

  228. 

  229. <div id="outline-container-org71726c2" class="outline-2">

  230. <h2 id="org71726c2"><span class="section-number-2">2.</span> Question 2</h2>

  231. <div class="outline-text-2" id="text-2">

  232. <div class="org-src-container">

  233. <pre class="src src-bash"><span style="color: #c792ea;">grep</span> -v <span style="color: #c3e88d;">'INFO'</span> server-data.log

  234. </pre>

  235. </div>

  236. 

  237. <pre class="example">

  238. 2022/09/18 13:25:34 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  239. 2022/09/18 13:25:35 wazuh-remoted: WARNING: Remote syslog not parsed from: '10.110.18.0/24'

  240. 2022/09/18 13:25:35 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  241. </pre>

  242. </div>

  243. </div>

  244. 

  245. <div id="outline-container-orgf7b5bdd" class="outline-2">

  246. <h2 id="orgf7b5bdd"><span class="section-number-2">3.</span> Question 3</h2>

  247. <div class="outline-text-2" id="text-3">

  248. <div class="org-src-container">

  249. <pre class="src src-bash"><span style="color: #c792ea;">grep</span> -c <span style="color: #c3e88d;">'ERROR'</span> server-data.log

  250. </pre>

  251. </div>

  252. 

  253. <pre class="example">

  254. 2

  255. </pre>

  256. </div>

  257. </div>

  258. 

  259. <div id="outline-container-org54ff846" class="outline-2">

  260. <h2 id="org54ff846"><span class="section-number-2">4.</span> Question 4</h2>

  261. <div class="outline-text-2" id="text-4">

  262. <div class="org-src-container">

  263. <pre class="src src-bash">sed -E <span style="color: #c3e88d;">'s/([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\/([0-2]?[0-9]|3[0-2])/xxx.xxx.xxx.xxx\/xx/g'</span> server-data.log &gt; newlog.log

  264. <span style="color: #c792ea;">cat</span> newlog.log

  265. </pre>

  266. </div>

  267. 

  268. <pre class="example">

  269. 2022/09/18 13:25:34 wazuh-remoted: INFO: Remote syslog allowed from: 'xxx.xxx.xxx.xxx/xx'

  270. 2022/09/18 13:25:34 wazuh-remoted: INFO: Remote syslog allowed from: '10.410.15.0/24'

  271. 2022/09/18 13:25:34 wazuh-remoted: ERROR: Remote syslog blocked from: 'xxx.xxx.xxx.xxx/xx'

  272. 2022/09/18 13:25:34 wazuh-remoted: INFO: Remote syslog allowed from: 'xxx.xxx.xxx.xxx/xx'

  273. 2022/09/18 13:25:35 wazuh-remoted: WARNING: Remote syslog not parsed from: 'xxx.xxx.xxx.xxx/xx'

  274. 2022/09/18 13:25:35 wazuh-remoted: ERROR: Remote syslog blocked from: 'xxx.xxx.xxx.xxx/xx'

  275. Log1 2022/09/18 13:25:35 wazuh-remoted: INFO: Remote syslog allowed from: 'xxx.xxx.xxx.xxx/xx'

  276. 2022/09/18 13:25:35 wazuh-remoted: INFO: Remote syslog allowed from: 'xxx.xxx.xxx.xxx/xx' END

  277. 2022/09/18 13:25:35 wazuh-remoted: ACTION: none INFO: Remote syslog allowed from: 'xxx.xxx.xxx.xxx/xx'

  278. </pre>

  279. </div>

  280. </div>

  281. 

  282. <div id="outline-container-org5397b06" class="outline-2">

  283. <h2 id="org5397b06"><span class="section-number-2">5.</span> Question 5</h2>

  284. <div class="outline-text-2" id="text-5">

  285. <div class="org-src-container">

  286. <pre class="src src-bash"><span style="color: #c792ea;">grep</span> -P <span style="color: #c3e88d;">"^2022\/09\/18 13:25:(34|35) wazuh-remoted: (INFO|ERROR|WARNING): Remote syslog (allowed|blocked|not parsed) from: '10\.110\.(15|18)\.0\/24'$"</span> server-data.log

  287. </pre>

  288. </div>

  289. 

  290. <pre class="example">

  291. 2022/09/18 13:25:34 wazuh-remoted: INFO: Remote syslog allowed from: '10.110.15.0/24'

  292. 2022/09/18 13:25:34 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  293. 2022/09/18 13:25:34 wazuh-remoted: INFO: Remote syslog allowed from: '10.110.15.0/24'

  294. 2022/09/18 13:25:35 wazuh-remoted: WARNING: Remote syslog not parsed from: '10.110.18.0/24'

  295. 2022/09/18 13:25:35 wazuh-remoted: ERROR: Remote syslog blocked from: '10.110.18.0/24'

  296. </pre>

  297. </div>

  298. </div>

  299. </div>

  300. <div id="postamble" class="status">

  301. <p class="author">Author: Amirlan Sharipov (BS21-CS-01)</p>

  302. <p class="date">Created: 2023-02-22 Wed 15:55</p>

  303. </div>

  304. </body>

  305. </html>